Doppler Ultrasound: What Affects The Test
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What Affects the Test
Factors that can interfere with your test and the accuracy of the results include:
- Bones above the area being studied or gas in the intestines.
- The inability to remain still during the test.
- Extreme obesity.
- Irregular heart rhythms (arrhythmias) or heart disease, which may cause changes in blood flow patterns even though the blood vessels are not abnormal.
- Having a cold arm or leg. Blood flow through that limb may be slowed.
- Having an open wound in the area that needs to be viewed.
| Last updated: | January 17, 2007 |
|---|---|
| Author: | Jan Nissl, RN, BS |
| Reviewed By: | Paul D. Traughber, MD - Radiology, Kenneth B. Sutherland, CD, BSc, MD, FRCPC - Diagnostic Radiology |
| Editors: | Susan Van Houten, RN, BSN, MBA, Tracy Landauer |
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